The Jackson County prosecutor's office says court documents show 20-year-old Johnny Dunlap attacked the officer with a plastic cone and other objects Wednesday night at the Jackson County Detention Center. The name of the officer, who is in a hospital as a result of his injuries, hasn't been released.

The prosecutor's office says the officer was unconscious during most of the assault and he suffered fractured facial and nasal bones.

Prosecutors want Dunlap's bond set at $250,000 for the attack. Dunlap faces up to life in prison if convicted. Online court records did not list an attorney for him Thursday.